Casement window



Oct. 6, 1942. P. H. KUYPER 2,297,964

GASEMENT WINDOW Filed Jan 30. 1940 Patented Oct. 6, 1942 UNITED STATES TENT OFFICE CASEMEN T WINDOW Peter H. Kuyper, Pella, Iowa, assignor to Rolscreen Company, Pella, Iowa, a corporation of Iowa 2 Claims.

My invention relates to a casement window particularly designed for simplicity of manufacture and for weather tightness between the casement sash and its frame and between the frame and the wall surrounding the frame.

One object of the invention is to provide a casement window, the frame of which can be economically manufactured with a minimum of shapes and yet provide for building up the Window where a multiple window is desired, the side jamb shapes being adaptable to form a mullion by merely placing two of them back to back and utilizing a simple sheet metal connecting strip to align them and hold them assembled relative to each other.

A further object is to provide a casement window particularly designed for installationv of a roll-screen in a convenient manner that involves a minimum expenditure of time. for installation.

Still another object is to provide jambs which are grooved with relatively wide grooves to receive relatively wide stops along the side jambs and a relatively narrow stop together with a rollscreen housing along the head jamb, the sidejambs being grooved to receive roll-screen edge guides.

A further object is to provide a frame designed for ease of aligning and connection to the wall by means of sheet metal strips fitting in grooves in the outer edges of the jambs, and arranged against the outer face of the wall, the strips being conveniently covered by moldings.

With the foregoing and other contemplated as well as obvious objects in view, the invention comprises the combination of elements and arrangement of parts so combined as to ccact and cooperate with each other in the performance of the functions and the accomplishment of the results herein contemplated, and comprises in one of its adaptations the species or preferred form illustrated in the accompanying drawing, wherein:

Figure 1 is a vertical sectional view through a casement window embodying my invention, parts being broken away to conserve space on the drawing;

Figure 2 is a horizontal sectional View on the line 22 of Figure 1, parts being also broken away in this figure, and a Figure 3 is a sectional View similar to a portion of the lower part of Figure 2, showing a modification.

On the accompanying drawing, I have used the reference character W to indicate generally a Wall in which my casement window is mounted.

The wall W has outer sheathing Iii, studding l2 and an inner finish l3, such as plaster or the like. My casement window includes a frame comprising a sill S, side jambs J, a head jamb J and a mullion M. The jambs J and J and the mullion M are formed of the same shaped material so as to minimize the number of shapes required for constructing the window frame. These shapes are characterized by relatively wide grooves [4 on their inner faces, plaster grooves l5 on their outer faces and retainer grooves I5 on their outer edges.

The relatively wide grooves it of the side jambs J and the mullion M receive relatively wide side stops Ill. The corresponding groove M of each head jamb J receives aroll-screen housing l3 and a relatively narrow head stop l9 side by side in the groove. The roll-screen housing I8 is supported by roll-screen edge guides 29 received in grooves 2| formed in the inner faces of the side stops ll. The guides 20 receive the edges of a roll-screen 22 which is normally rolled in housing l8 and has a binder bar 23' on its lower edge, as more fully described in Dixson Patent No. 1,680,092, of August '7, 1928.

I provide weather strips WS for a casement sash 24, the sash being hinged in the usual manner but the hinges and other hardware being omitted from the drawing as they form no part of my present invention. Each weather strip WS has a flange 25 and a flange 26. The flanges 25 are confined in the grooves M of the side jambs, head jambs and mullion by the stops I1 and I9, while the flanges 26, as shown in Figure 2, normally spring outwardly away from the edges of the stops when the sash 24 is open, as shown in Figure 2. As the sash is pulled to the closed position of Figure 1, the flanges 26 are forced inwardly and provide a weather-tight contact around the entire marginal edge of the sash. One of the weather strips WS is also provided along the sill S and is mounted in a rabbet 21 of a sub sill S. A filler strip 23 retains the flange 25 of the sill weather strip in the rabbet 21.

The window frame is secured in the wall W by sheet metal retainer strips R, while the two jamb members which form the mullion M are connected together by a channel shaped connecting strip C. The retainer strips R have flanges received in the groove IE and other flanges contacting the outer face of the wall and secured thereto as by nails 29. The window frame is shimmed up and leveled by shims 39 when it is installed and then three of the retainer strips R along the top and sides are used to secure it in position. Thereafter side molds 3| and a head mold 32 cover the retainer strips, While an apron strip 33 finishes off the sill S. The apron strip is rabbeted at 34 to receive the upper edge of the siding 35, later applied to the sheathing ID.

The connecting strip C has its flanges received in the grooves I6 of the jamb members which form the mullion M and its web spans the distance between the grooves. A mold 36 is provided to cover the connecting strip C.

With my arrangement of frame members, a mullioned window may be provided with a minimum of stock carried by the dealer and with a minimum of change in set-up for a mullioned window as distinguished from a single one. The side jarnb members are readily adapted to form a relatively narrow mullion when back to back, as shown for the mullion M in Figure 2, and connected together by the connecting strip C. The sill S and head jamb J then merely extend from the mullion to the side jamb without providing, as in usual practice, a continuous sill and head jamb which requires carrying in stock different lengths of these items to accommodate single windows and others with one or more mullions.

The jambs are also formed so as to readily receive the relatively simple weather strips WS in such manner that the stops [1 and I9 may be nailed in position with a few nails and yet there is good contact between the anchorage flange 25 of each weather strip and the jamb member throughout the entire length of the weather strip. This is a decided advantage over weather strips which have flanges that are nailed to the window frame and which always present the problem of gaps between the nails through which air may flow. My arrangement eliminates any possible distortion of the weather strips and insures that they make good contact with the sash 24 throughout the entire lengths of the strips. My construction is also readily adapted for use in connection with roll-screens, and involves a minimum of work for their installation. On the other hand, the roll-screen may be omitted if desired, in which event a relatively wide stop like that shown at I! would be provided in place of the stop provided at l9 and the roll-screen housing l8.

In Figure 3, I show a modified construction in which the groove 2| directly receives the edge of the roll-screen.

While I have shown two embodiments of my invention, it will be understood of course that I' do not wish to be limited thereto, since many modifications may be made, and I therefore contemplate by the claims appended hereto to cover any such modifications or substitutions of mechanical equivalents as fall within the true spirit and scope of my invention without sacrificing any of its advantages.

I claim as new and desire to secure by Letters Patent of the United States:

1. In a casement window, a window frame comprising a head jamb, side jambs and a sill, said jambs being of the same cross section and provided with relatively wide grooves, relatively wide side stops substantially filling the grooves of said side jambs, a roll-screen casing and a relatively narrow head stop which together are the same width as one of said side jambs to substantially fill the groove of said head jamb, said side stops having closed bottom grooves on their inner faces to receive roll-screen edge guides, and roll-screen edge guides therein and aligned thereby with a screen from said roll-screen casing.

2. In a casement window, a window frame comprising a head jamb, side jambs, and a sill, said jambs being of the same cross section and provided with relatively wide grooves, relatively wide side stops substantially filling the grooves of said side jambs, a roll-screen casing and a relatively narrow head sto located side by side and together substantially filling the groove of said head jamb, a screen extensible from said roll-screen casing, said side stops having grooves on their inner faces and extending only part way through the stops to slidably receive the edges of said roll-screen.

PETER H. KUYPER. 

